Andrew Wang created HDFS-6093: --------------------------------- Summary: Expose more caching information for debugging by users Key: HDFS-6093 URL: https://issues.apache.org/jira/browse/HDFS-6093 Project: Hadoop HDFS Issue Type: Improvement Components: caching Affects Versions: 2.4.0 Reporter: Andrew Wang Assignee: Andrew Wang
When users submit a new cache directive, it's unclear if the NN has recognized it and is actively trying to cache it, or if it's hung for some other reason. It'd be nice to expose a "pending caching/uncaching" count the same way we expose pending replication work. It'd also be nice to display the aggregate cache capacity and usage in dfsadmin -report, since we already have have it as a metric and expose it per-DN in report output. -- This message was sent by Atlassian JIRA (v6.2#6252)